baber/WOPTO huggingface dataset:
Patent GB-1269760-A (GB)
Title: Improvements in or relating to coin-operated telecommunications systems
IPC: H04M17/02
Filed: 1970-07-17
Abstract: 1,269,760. Automatic exchange systems. SIEMENS A.G. 17 July, 1970 [18 July, 1969], No. 34722/70. Heading H4K. In a coin-operated system utilizing A.C. signals as coin-collect signals during the course of a call, these same signals are used for other purposes during the initial setting up process of the call. The only specified purposes are, for checking that a predetermined minimum fee has been deposited when it is determined by the exchange from an analysis of some (e.g. the first) of the dialled digits that a chargeable call is to be set-up, for checking the correct operation of the subset A.C. signal receiving equipment and for demanding information about special characteristics of the subscriber.
Patent GB-521977-A (GB)
Title: Improvements relating to curtain-rail brackets
IPC: A47H1/124
Filed: 1938-11-30
Abstract: 521,977. Curtain suspensions. GILL, E. Nov. 30, 1938, No. 34840. [Class 52 (v)] A bracket for supporting the curtain rail 11 comprises a flattened loop portion 13 having a slot 16 to take over the rail and a slotted portion 17 through which passes a screw 15 for attaching it to the wall &c. portion 12 of the bracket, the tightening of the screw also serving to cause the loop portion to grip the rail flange.
Patent GB-1471260-A (GB)
Title: Lubrication system for a hydraulic device
IPC: F04C2/10
Filed: 1974-08-08
Abstract: 1471260 Rotary positive-displacement fluid machines EATON CORP 8 Aug 1974 [8 Aug 1973] 34921/74 Heading F1F In a device of the gerotor type shown in Fig. 2 passages are provided for lubricating fluid such that the fluid lubricates and cools sequentially the splines on drive-shaft 70, seal 75, and bearings 60, 61 before returning through passages 82, 80, 83, and 86. Additional lubricating fluid may be supplied in large sized devices by providing a slot 100, Fig. 4, leading from one of the port plate passages to passage 91, Fig. 2. This provides a pulsating flow of lubricant at high-pressure. Seals prevent leakage of lubricant from the passages described above.
Patent GB-802648-A (GB)
Title: Improvements in emulsion polymerization of unsaturated hydrocarbons
IPC: C08F4/06
Filed: 1956-11-16
Abstract: A process for the emulsion polymerization of organic monomeric material containing an active CH2=C< group comprises contacting the material under polymerizing conditions and in aqueous medium with a catalyst system including an oxidized sodium, potassium or ammonium alkylbenzene sulphonate.  Polymeric material may be obtained by polymerizing butadiene, 2,3-dimethylbutadiene, isoprene, piperylene, 3-furyl butadiene, 3-methoxy butadiene, chloroprene, bromoprene or methylchloroprene; styrene, alkyl styrenes, p-chlorostyrene, p-methoxystyrene, alpha-methylstyrene, or vinylnaphthalene; acrylic acid, methacrylic acid, methyl acrylate, ethyl acrylate, methyl alphachloro-acrylate, methyl methacrylate, ethyl methacrylate, butyl methacrylate, methyl ethacrylate, acrylonitrile, methacrylonitrile or methacrylamide; methyl isopropenyl ketone, methyl vinyl ketone, methyl vinyl ether, vinylethinyl alkyl carbinols, vinyl acetate, vinyl chloride, vinylidene chloride, vinylfurane, vinyl carbazole, or vinylacetylene; either alone or in mixtures of 2 or more of such compounds.  Preferred products are obtained by polymerizing aliphatic conjugated dienes either alone, or with aryl olefins, acrylic or substituted acrylic acids esters, nitriles, and amides, or methyl isopropenyl ketone or vinyl chloride; more especially copolymers of butadiene with styrene.  Oxidation of the alkyl benzene sulphonates may be effected in the solid form or in aqueous solution by passing an oxygen-containing gas in at a temperature of 60-100 DEG  C. Preferred sulphonates are sodium tert.-dodecylbenzene sulphonate, sodium decyltoluene sulphonate, potassium octylxylene sulphonate, ammonium octylbenzene sulphonate, ammonium eicosylbenzene sulphonate, potassium 2-ethyl-4-dodecylbenzene sulphonate and sodium tert.-octylnaphthalene sulphonate.  The oxidized sulphonates are preferably used in iron pyrophosphate, hydroperoxide, peroxamine and sulphoxylate systems.  Mercaptans may also be present in the polymerizable mix and the polymerization may be terminated before complete conversion.  The polymerization is preferably effected at a pH of 9.0 to 11.8. Emulsifiers such as potassium laurate, stearate or oleate or rosin soaps may also be present.ALSO:A process for the emulsion polymerization of organic monomeric material containing an active CH2=C group comprises contacting the material under polymerizing conditions and in aqueous medium with a catalyst system including an oxidized sodium, potassium or ammonium alkylbenzene sulphonate, (see Group IV (a)).  Oxidation of the alkyl benzene sulphonates may be effected in the solid form or in aqueous solution by passing an oxygen-containing gas in at a temperature of 60-100 DEG C. Preferred sulphonates are sodium tert. dodecylbenzene sulphonate, sodium decyltoluene sulphonate, potassium octylxylene sulphonate, ammonium octylbenzene sulphonate, ammonium epicosylbenzene sulphonate, potassium 2-ethyl-4-dodecylbenzene sulphonate and sodium tert.-octylnaphthalene sulphonate.
Patent GB-191058-A (GB)
Title: Improvements in and relating to steam and/or water drums suitable for high pressure boilers
IPC: F22B37/22
Filed: 1922-12-27
Abstract: 191,058. Schmidt'sche Heissdampf- Ges. Dec. 27, 1921, [Convention date]. Steam and water drums.-The end-plates B of a steam or water drum of a high-pressure boiler are so inserted into the shell A with their flanges outwards that they may be riveted to the shell from the outside. The plates are formed with inner caulking edges e, or caulking rings f may be inserted in grooves formed at the edges of their inner faces.
Patent GB-905210-A (GB)
Title: Improvements in or relating to spectacle frames
IPC: G02C7/02
Filed: 1960-10-14
Abstract: 905,210. Spectacle frames. BOHLER & CO. G.m.b.H. Oct. 14, 1960 [Oct. 15, 1959; Feb. 29, 1960], No. 35279/60. Class 97 (1). A spectacle frame comprises a nose bridge and two brow-bars which have grooves therein to receive two lens carriers, clearance being provided between the grooves and the carriers. The lenses are held in the carriers by wires &c. engaging the lower parts of the lenses, passing through the carriers and being fixed to the brow-bars at both ends. The sides of the carriers or of the grooves may comprise transverse, partly-cylindrical, ridges which engage either corresponding recesses in the grooves or carriers, respectively (Figs. 3, 4) or the flat sides thereof. Alternatively, the tops of the carriers may comprise partly-spherical projections which extend beyond the sides thereof (Fig. 7) and which engage either the top of the grooves or partly spherical recesses formed therein. Each carrier also comprises a ridge or a groove for engaging a corresponding groove or ridge in the lens.
Patent GB-1470594-A (GB)
Title: Method of selectively etching sheet material
IPC: B41C1/02
Filed: 1974-08-12
Abstract: 1470594 Etching PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 12 Aug 1974 [15 Aug 1973] 35405/74 Heading B6J A continuous method of selectively (e.g. by using a photo-resist) etching sheet material consisting of a metal alloy (e.g. a nickel-iron alloy whose main constituent is iron), the main constiuent of which occurs in ion form in at least two valences, consists in using an etching liquid (e.g. ferric chloride and nickel chloride) which contains the constituents of the alloy in ion form, the main constiuent being in its highest oxidized state, in a concentration ratio equal to the atomic ratio in the alloy, and continuously regenerating the etching liquid by reoxidation of the reduced ion of the main constituent, while maintaining the ion concentration by diluting with water.
Patent GB-1222460-A (GB)
Title: Timekeeping mechanisms for clocks and watches
IPC: G04B43/00
Filed: 1969-07-15
Abstract: 1,222,460. Anti-magnetic timepieces. INSTITUT DR. ING REINHARD STRAUMANN A. G. July 15, 1969 [Aug.19, 1968], No.35531/69. Heading G3T. A timepiece comprises a balance, a balance staff, a balance spring and an escapement, all parts mounted on the balance-staff, all parts mounted on the pallet staff, the escape wheel and at least a major portion of the balance staff consisting of materials having a magnetic permeability not exceeding 1.01. The material may be brass, a hardenable bronze or a synthetic plastics and the balance staff may be made entirely of such a material or it may have steel bearing pivots. The balance and the other parts mounted on the balance staff may consist of a Ni-Cu-Si alloy, a nickel-silver alloy or a copper-beryllium alloy. The pallets and the escape wheel may consist of a Cu-Mn-Ni alloy, a nickel-silver alloy or a copper-beryllium alloy.
Patent GB-764016-A (GB)
Title: Improvements in and relating to the connection of concentric assembly members
IPC: F16D13/64
Filed: 1954-12-08
Abstract: 764,016. Assembling force-fits; making friction clutches. SOC. ANON. FRANCAISE DU FERODO. Dec. 8, 1954 [Dec. 14, 1953], No. 35604/54. Classes 83 (2) and 83 (4). Two concentric members, such as a ring 11 and a hub 6, have different hardnesses, at least on the surface, and the harder member is toothed and the other plain so that when one is pressed on to the other, the harder toothed member cuts grooves that ensure a rigid coupling, the swarf being received in a groove 13 provided in the softer member. As described, the spring carrying plate 11 of a friction clutch is made of blued steel sheet or case-hardened steel having a hardness factor between 60 and 65 Rockwell and the hub is made of semi-hard steel having a carbon content of 0.35 per cent, preferably hardened and tempered, the ratio between the surface strength of the plate 11 and the hub 6 being preferably between two and four. The plate 11 has teeth 27 having a pitch circle diameter equal, or preferably slightly less than the diameter of the portion 14 of the hub and the groove 13 for receiving the material cut from the portion 14 is formed partly in a flange 19 and partly in the portion 14 by a form tool 24. When the plate 11 abuts against the flange 19, a washer is placed on the portion 16 of the hub and the annular lip 17 is bent back outwards against the washer. The hub portion 14 has a sloping lead-in 15 and the teeth 27 on the plate 11 may have a similar lead-in portion.
Patent GB-326254-A (GB)
Title: Improvements in devices for playing games
IPC: A63D15/02
Filed: 1929-05-16
Abstract: 326,254. McLellan, J. May 16, 1929. Billiards; table games.-A miniature rotatable billiard table is mounted on a base having a central pivot pin, the weight being supported by three bearing members running on a flat horizontal track. The playing table consists of two layers of wood, 21, 22, glued together with their grains arranged in different directions. To the upper surface of the table is secured a thin layer 23 of rubber. The table rotates about a bolt 29 secured to a triangular base 25 having levelling screws 26, and is supported on three rollers 24 rotatably attached to the base 25. The cushions are formed by tightly stretched wire, catgut or other material 33 which may be covered with rubber and which is passed round bosses 34 and through holes in the playing table. Wedges may be inserted in the loops 36 beneath the table to tighten the wire. Alternatively, the cushions may be constituted by wood mouldings fastened to the edges of the table and having lengths of rubber tubing glued to them. The pockets are formed by hollows at the edges of the table, the balls being retained in them by a strip 37 which surrounds the table and which has slots to facilitate the removal of the balls. Balls of steel, ivory, glass or composition, which may be suitably loaded at their centres, are used in games played on the playing table. A brake 31 is provided in the form of a spring bearing against the underside of the table. The table may be used in conjunction with the miniature cues and nests described in Specifications 326,439 and 326,459.
Patent GB-508308-A (GB)
Title: Improvements in infantry mortars
IPC: F41A25/00
Filed: 1937-12-28
Abstract: 508,308. Trench mortars. SAGEB SOC. ANON DE GESTION ET D'EXPLOITATION DE BREVETS. Dec. 28, 1937, No. 35874. Convention date, Dec. 31,1936. [Class 92 (i)] The joint connecting the barrel extremity 8 with the cavity in the ground plate 5 of a trench mortar includes a through-bolt 12 with flats 14 engaging a cut-away recess 11 in the end df the barrel to permit of training in the direction of the arrows shown in Fig. 3, the barrel during elevation carrying the bolt round in side bearings 13 in the ground plate. The bearings extend the cavity at 18 for more than a hemisphere as shown in Fig. 2, and flats 17 on the barrel extremity permit assembly by turning the barrel after insertion in the cavity. The barrel 1 is mounted as shown in Fig. 7 for turning movement on its own axis in the bracket member 25 which usually connects the barrel to the forward mounting through the medium of a shock absorber 26. Specification 499,735 is referred to.
Patent GB-843251-A (GB)
Title: Improvements relating to liquid separators
IPC: B01D17/04
Filed: 1958-11-10
Abstract: 843,251. Filters ; gravity separation. FRAM CORPORATION. Nov. 10, 1958 [Jan. 20, 1958], No. 36007/58. Class 46. A liquid separator for separating from water lighter immiscible liquids, such as oil, comprises a tank 1 divided by a portion 2 into two reservoirs 3 and 4 communicating with upper chambers 21, 22 respectively. The reservoir 3 contains a cartridge 10 which serves as a filter and coalescer having an outlet which leads through a hole 23 in the partition 2 to the reservoir 3. The liquid flows through a pipe 8 and a pre-filter 7 to the reservoir 3 where some of the oil separates out and rises into the chamber 21, the liquid then flows through the cartridge 10, coalescing the droplets of oil, to the reservoir 2 where the coalesced oil rises to the chamber 22 and the water flows out through the conduit 24. The chambers 21, 22 are provided with suitable valves for the oil and release of air from the container. The cartridge 10 preferably comprises a sheet of fibre glass surrounding a star-shaped resin-impregnated filter paper.
Patent GB-1151870-A (GB)
Title: Mixing Machine.
Inventor: LIST HEINZ
IPC: B01F27/73
Filed: 1966-08-11
Abstract: 1,151,870. Mixing apparatus. H. LIST. 11 Aug., 1966 [14 Aug., 1965], No. 36020/66. Heading B1C. A batch or continuous discharge kneading machine has a shaft 20 carrying mixing elements in the form of disc sectors 21, a housing 11 with teeth 18, 19, and drive means D for giving the mixing elements and the teeth relative rotary and reciprocating movements; the mixing elements are circumferentially offset in a helical manner. In the batch machine shown, they are arranged' chevron pattern and have bevelled edges, and the drive means periodically reverses to urge material alternately to the ends and the midpoint of the housing. In a continuous discharge apparatus (see Fig. 6, not shown) there may be feeding and discharge screws (62, 64) and mixing elements which transport against the flow direction. Rotary and/or reciprocating motion may be given to the housing instead of to the mixing elements; a reciprocating motion may be given to the teeth. The housing may be a trough (see Fig. 5, not shown) which may be discharged by tilting and may have a compression ram (42). There may be heating means not depicted.
Patent GB-323342-A (GB)
Title: Improvements in and relating to lightning or surge absorbers
IPC: H02H9/00
Filed: 1928-12-06
Abstract: 323,342. Norris, E. D. T., and Ferranti, Ltd. Dec. 6, 1928. Drawings to Specification. Protective arrangements.-To minimize eddy currents in lightning or surge absorbers in which a primary element or winding in series with the line is associated with a metallic element, one or more mutually insulated sheets of conducting material, magnetic or non-magnetic, for example that known by the Registered Trade Mark " Stalloy " or silicon iron, are interposed between winding and metallic element. These may be lightly insulated from each other and the metallic element and highly insulated from the winding. In the disc form such as that described in Specification 325,618, the sheets may be radially slit.
Patent GB-1094478-A (GB)
Title: Polishing devices
Inventor: RAFFE JOSEPH PETER
IPC: A47L23/05
Filed: 1963-09-13
Abstract: 1,094,478. Pads; cleaning footwear. CHISWICK PRODUCTS Ltd. June 22, 1964 [Sept. 13, 1963], No. 36104/63. Heading A4F. A polishing device particularly for leather comprises backing sections 12a, 12b, 12c, hinged together so that the pad may be folded as shown in Fig. 1 to fit into a cover cap 14, and of flexible plastics material of which that connecting adjacent sections forms the hinges. The backing sections carry a polishing pad 17, e.g. of polyurethane foam, having a polishing surface of serpentine configuration longitudinally, the undulations of which interlock when the device is folded. Springs 16 tend to hold the sections 12a, 12b, 12c in alignment. The device is secured to a holder 11 which receives the cover cap 14 and: carries on its reverse side a pad 13 impregnated with polish and having a cover cap 15. In alternative embodiments (1) the springs 16 are replaced by a single torsion spring (2) the holder comprises hinged sections adapted to fold around and enclose the folded polishing device (4) the holder is of square section in plan, and (5) the middle one of the three hinged backing sections is provided with pins for engaging holes in the holder.
Patent GB-1169130-A (GB)
Title: Method for Combating Microorganisms
IPC: A61L2/20
Filed: 1968-07-30
Abstract: 1,169,130. Difluorooxetene derivatives. ALLIED CHEMICAL CORP. 30 July, 1968 [7 Aug., 1967], No. 36339/68. Heading A5E. [Also in Division C2] A method of combating microorganisms at a locus comprises contacting the locus with the vapour of a difluorooxetene of general formula: wherein X and Y, which can be the same or different, are Cl or F, in an effective amount. The oxetenes may be employed alone, or in mixtures or with another vapour phase such as ethylene oxide or water vapour. Perfumes or deodorants may also be present.
Patent GB-761959-A (GB)
Title: Process for the recovery of glutamic acid
Filed: 1954-12-16
Abstract: A process for the recovery of glutamic acid from a crude solution containing it is characterized by treating said solution to convert it into a composition comprising glutamic acid hydrochloride, water and either isopropyl or tert.-butyl alcohol in which the weight ratio of water to alcohol is between 20:80 and 3:97, separating solid material therefrom and separating glutamic acid from the remaining solution.  The water/alcohol weight ratio is preferably 1:9.  The process is preferably applied to the recovery of glutamic acid from hydrolysates containing it, e.g. those from Steffen's filtrate, vinasse, schlempe and beet molasses residues, if desired after concentration to reduce water content. After removal of solids the alcohol may be removed by evaporation, the aqueous solution remaining adjusted to a pH of 4.5-5.5, decolourized, concentrated to precipitate inorganic salts and impurities which are separated by filtration and adjusted to pH of 2.5-3.5 when the glutamic acid crystallizes.  Alternatively, the alcoholic solution remaining after removal of solids is neutralized with an alkaline earth metal hydroxide (e.g. calcium, barium or magnesium hydroxide), the resulting suspension heated to between 40 DEG  and 100 DEG C., cooled and the crystallized alkaline earth metal glutamate separated.  The latter may be dissolved in water and converted to sodium glutamate and glutamic acid. Specification 651,643 is referred to.
Patent GB-1044374-A (GB)
Title: Transistor switching means
Inventor: ALLMARK REGINALD HUGH
IPC: H03K17/0422
Filed: 1961-10-11
Abstract: 1,044,374. Transistor switching circuits. ENGLISH ELECTRIC CO. Ltd. Oct. 4, 1962 [Oct. 11, 1961], No. 36478/61. Heading H3T. A switching circuit comprises two transistors 10, 20 having a common collector load 12 and coupling between the emitter of transistor 10 and the base of transistor 20. The bias potentials and resistors 11, 12 are so proportioned that when both transistors are turned on by a voltage applied to the base of 10, the collector/ base junction of 10 becomes forward biased (saturated) and transistor 20 is almost saturated. As described, transistor 20 is used to switch pulses from a source 22 to a load 23 under control of a binary signal on line 18. In the positive-going condition of input signal, transistor 10 passes a small current and transistor 20 is non-conductive. When the input signal on line 18 becomes more negative, transistor 10 passes heavier current, turning on transistor 20. The increased current in resistor 12 causes the collector/base junction of 10 to become forward biased, hence the emitter current becomes reduced and the collector current of 20 becomes stabilized to a value just below saturation. The onset of each pulse from 22 gives a current surge in 10 and hence increases the base/ emitter current of 20 resulting in a rapid buildup of collector current in 20. In Fig. 2 (not shown) a circuit as described is used to couple a plurality of voltage sources to respective bistable stages.
Patent GB-1461830-A (GB)
Title: Tool for removing sharp edges from toothed wheels
IPC: B23F19/12
Filed: 1974-08-20
Abstract: 1461830 Abrasive tools H SEIDENSTICKER 20 Aug 1974 [12 Sept 1973] 36571/74 Heading B3D A tool for removing sharp edges or burrs from toothed wheels comprises a rod-like member provided with a helical worm-like portion 2 coated with a grinding material of cubic boron nitride, the minor diameter of the worm-like portion being equal to or less than 8 mm.
Patent GB-1042870-A (GB)
Title: A pipe end insert
IPC: F16L37/05
Filed: 1965-08-26
Abstract: 1,042,870. Pipe couplings; stopping pipes. SWEL-PLUG Inc. Aug. 26, 1965 [Sept. 21, 1964], No. 36678/65. Headings F2G and F2P. A sleeve 11 of an elastic deformable material is secured in a ring 3, which may have a screwthreaded or blind end 7, and encompassed by a sheath of ribs 19 which are longitudinally straight, concave in cross-section and overlie each other in herring-bone relationship. After insertion into a pipe and the application of internal fluid pressure, the sleeve is expanded to bring the ribs into contact with the pipe and to prevent withdrawal of the sleeve.